DEVICE VARIATIONS
DEVICE VARIATIONS
Table 1. Device Variations Between the 33889D and 33889B Versions
Parameters
Differential Receiver, Recessive To Dominant Threshold
(By Definition, V
DIFF
= V
CANH
-V
CANL
)
Symbol
Trait
Min
V
DIFF1
Typ
Max
Differential Receiver, Dominant To Recessive Threshold
(Bus Failures 1, 2, 5)
Min
V
DIFF2
Typ
Max
CANH Output Current (V
CANH
= 0; TX = 0.0)
I
CANH
Min
Typ
Max
CANL Output Current (V
CANL
= 14 V; TX = 0.0)
I
CANL
Min
Typ
Max
Detection threshold for Short circuit to Battery voltage
loop time Tx to Rx, no bus failure, ISO configuration
loop time Tx to Rx, with bus failure, ISO configuration
Vcanh
tLOOPRD
tLOOPRD-F
max
max
max
Device Part Number
MC33889B
3.2 V
2.6 V
2.1 V
3.2 V
2.6 V
2.1 V
50 mA
75 mA
110 mA
50 mA
90 mA
135 mA
Vsup/2 + 5V
N/A
N/A
N/A
min
typ
max
T2SPI timing
DEVICE BEHAVIOR
CANH or CANL open wire recovery principle
Rx behavior in TermVbat mode
Reference
after 4 non
consecutive pulses
after 4 consecutive
pulses
T2spi
min
N/A
30
N/A
not specified, 25us
spec applied
MC33889D
3.5 V
3.0 V
2.5 V
3.5 V
3.0 V
2.5 V
50 mA
100 mA
130 mA
50 mA
140 mA
170 mA
Vsup/2 + 4.55V
1.5us
1.9us
3.6us
8
16
30
25us
loop time Tx to Rx, with bus failure and +-1.5V gnd shift, tLOOPRD/DR-F+GS
5 node network, ISO configuration
Minimum Dominant time for Wake up on CANL or CANH
(Tem Vbat mode)
tWAKE
Reference
Rx recessive, no pulse Rx recessive, dominant
pulse to signal bus
traffic
Notes
1. This datasheet uses the term 33889 in the inclusive sense, referring to both the D version (33889D) and the B version (33689B).
2. The 33889D and 33889B versions are nearly identical. However, where variations in characteristic occur, these items will be separated
onto individual lines.
33889
2
Analog Integrated Circuit Device Data
Freescale Semiconductor
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
